Enum subscript_compiler::frontend::ast::Node

pub enum Node<'a> {
    Tag(Tag<'a>),
    Ident(Ann<Atom<'a>>),
    Enclosure(Ann<Enclosure<'a, Node<'a>>>),
    String(Ann<Atom<'a>>),
    InvalidToken(Ann<Atom<'a>>),
}

Variants

Tag(Tag<'a>)

The parser doesn’t emit AST Tag nodes. This is done in a later processing phase.

Ident(Ann<Atom<'a>>)

Some identifier that may or may not be followed by square parentheses and/or a curly brace enclosure. E.g. \name.

Enclosure(Ann<Enclosure<'a, Node<'a>>>)

An enclosure can be a multitude of things:

• Some syntactic enclosure:
  • Curly braces
  • Parentheses
  • Square parentheses
• Some error with it’s invalid start & end token (i.e. a opening [ and closing })
• Additionally, after parsing, an enclosure can also be a fragment (i.e. a list of AST nodes)

String(Ann<Atom<'a>>)

Some string of arbitrary characters or a single special token.

InvalidToken(Ann<Atom<'a>>)

Some unbalanced token that isn’t associated with an enclosure. In Subscript, enclosure symbols must be balanced. If the author must use such in their publications, then use the tag version.

Implementations

impl<'a> Node<'a>

pub fn new_tag(name: Ann<&'a str>, children: Vec<Node<'a>>) -> Self

Some tag with no parameters and just children.

pub fn new_ident(str: Ann<&'a str>) -> Self

pub fn new_enclosure(
    range: CharRange,
    kind: EnclosureKind<'a>,
    children: Vec<Node<'a>>
) -> Self

pub fn new_string(str: Ann<&'a str>) -> Self

pub fn unannotated_tag(name: &'a str, children: Vec<Node<'a>>) -> Self

pub fn unannotated_tag_(name: &'a str, child: Node<'a>) -> Self

pub fn unannotated_ident(str: &'a str) -> Self

pub fn unannotated_enclosure(
    kind: EnclosureKind<'a>,
    children: Vec<Node<'a>>
) -> Self

pub fn unannotated_str(str: &'a str) -> Self

pub fn unannotated_string(str: String) -> Self

pub fn new_fragment(nodes: Vec<Self>) -> Self

pub fn is_whitespace(&self) -> bool

pub fn is_tag(&self) -> bool

pub fn is_ident(&self) -> bool

pub fn is_enclosure(&self) -> bool

pub fn is_string(&self) -> bool

pub fn is_any_enclosure(&self) -> bool

pub fn is_enclosure_of_kind(&self, k: EnclosureKind<'_>) -> bool

pub fn is_named_block(&self, name: &str) -> bool

pub fn get_string(&'a self) -> Option<Ann<Atom<'a>>>

pub fn get_enclosure_children(
    &self,
    kind: EnclosureKind<'_>
) -> Option<&Vec<Node<'a>>>

pub fn unblock(self) -> Vec<Self>

pub fn into_fragment(self) -> Vec<Self>

Unpacks an Node::Enclosure with the Fragment kind or returns a singleton vec.

pub fn unwrap_tag(&self) -> Option<&Tag<'a>>

pub fn unwrap_tag_mut(&mut self) -> Option<&mut Tag<'a>>

pub fn unwrap_ident<'b>(&'b self) -> Option<&'b Ann<Atom<'a>>>

pub fn unwrap_enclosure<'b>(
    &'b self
) -> Option<&'b Ann<Enclosure<'a, Node<'a>>>>

pub fn unwrap_curly_brace<'b>(&'b self) -> Option<&'b Vec<Node<'a>>>

pub fn unwrap_string<'b>(&'b self) -> Option<&'b Ann<Atom<'a>>>

pub fn unwrap_string_mut<'b>(&'b mut self) -> Option<&'b mut Ann<Atom<'a>>>

pub fn into_tag(self) -> Option<Tag<'a>>

pub fn transform<F: Fn(NodeEnvironment<'a>, Node<'a>) -> Node<'a>>(
    self,
    env: NodeEnvironment<'a>,
    f: Rc<F>
) -> Self

Bottom up ‘node to ndoe’ transformation.

pub fn transform_mut<F: FnMut(NodeEnvironment<'a>, Node<'a>) -> Node<'a>>(
    self,
    env: NodeEnvironment<'a>,
    f: Rc<RefCell<F>>
) -> Self

pub fn transform_children<F>(self, f: Rc<F>) -> Self where
    F: Fn(Vec<Node<'a>>) -> Vec<Node<'a>>, 

Bottom up transformation of AST child nodes within the same enclosure.

pub fn into_highlight_ranges(
    self,
    nesting: Vec<Atom<'a>>,
    binder: Option<Atom<'a>>
) -> Vec<Highlight<'a>>

For syntax highlighting VIA the compiler frontend.

pub fn to_string(&self) -> String

pub fn syntactically_equal(&self, other: &Self) -> bool

pub fn push_child(self, child: Self) -> Self

Push to a fragment or tag node. TODO: Should we also push to any EnclosureKind?

Trait Implementations

impl<'a> Clone for Node<'a>

fn clone(&self) -> Node<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for Node<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.